The post-WWII Healing Revival introduce a series of new, extra-biblical doctrines that would play a critical role in the splitting of churches and the creation of new leaders. Though in their infancy, this set of doctrines was being accepted and promoted by numerous ministers and evangelists under the title “Latter Rain,” which referred to an ancient prophecy in the book of Joel in the Christian Bible. Leaders of the movement taught that the Christian Church must restore and equip a “five-fold ministry,” which included modern-day apostles, prophets, evangelists, pastors, and teachers. Then, while appointing key individuals to these roles, the movement presented the idea that mainstream Christianity had become apostate and needed purging. Participants were asked to decide for themselves which side of the “spiritual war” they would take and that those who joined the “five-fold ministries” would purge the wickedness and judge the apostate.[13]

Leaders of the Assemblies of God watched in horror while men and women they considered to be unqualified took leadership roles throughout the organization. They realized that this new theology was divisive. By teaching that denominational churches had grown corrupt, those who joined the new movement were forced to consider those who remained in them as apostates. Meeting in Seattle, Washington, in September 1949 to determine how best to handle the situation, Assemblies of God leaders concluded that the “New Order of the Latter Rain” was founded upon Christian extremism with the sole purpose of severing fellowship among like-minded Christian believers.
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Assemblies of God:
https://william-branham.org/site/research/topics/assemblies_of_god